Updated: 2025-08-26 23:01:56
For foreign travelers visiting Japan, getting a SIM card is much easier than it used to be. These days, you can purchase them in a variety of locations—including airports, vending machines at the airport, electronics stores, and even convenience stores in tourist areas. With so many options, it can actually feel overwhelming.
Ten years ago, SIM cards for foreign visitors were only available in a few places like airports. But now, the real question is not “where” to buy one, but “which one” to choose.
Options include SIM cards sold directly at the airport, ones you can reserve in advance and pick up at your hotel or the airport, and even vending machines.
High-quality pocket WiFi devices are also still available.
As of June 2025, my personal recommendation is to purchase an eSIM before departing for Japan.
Most smartphones today support eSIMs. An eSIM is a SIM that doesn’t require a physical card—you simply download a profile to your phone and you're ready to go.
If you purchase an eSIM before coming to Japan, you can set it up using the airport WiFi while you’re waiting at immigration and be online immediately upon arrival.
If your phone doesn't support eSIM, or if you’re just more comfortable with a physical SIM, you can buy one after you arrive. SIM card counters are located in the arrival lobbies of Japan’s international airports, and vending machines are available too.
About ten years ago, when it wasn’t possible for foreign visitors to buy SIM cards or eSIMs, pocket WiFi was the go-to solution. It’s still convenient today, especially for families or groups traveling together. One pocket WiFi device can be shared by multiple people, so you don’t need to buy multiple SIMs—and it's reasonably priced.
Because pocket WiFi connects directly to Japanese networks, it’s a great option for travelers visiting multiple regions. The stable and high-speed connection also makes it ideal for business travelers, often even more so than SIM cards or eSIMs.
If you use a global carrier, you may be able to roam in Japan at a reasonable cost. For major carriers like AT&T or Verizon, check in advance to see if they offer a fixed-rate international plan. Otherwise, you might get hit with a huge bill after your trip.
It’s possible to get by without a SIM or pocket WiFi by using free Wi-Fi at hotels, cafes, bullet trains, and other locations. However, this option is quite limited, and we don’t recommend relying on it alone.
| Option | Best for | Price range (approx.) | Pros | Cons |
|---|---|---|---|---|
| eSIM | Short trips / solo travelers | from 2000 JPY | No physical SIM required, immediate activation, easy online purchase | Some devices may not support eSIM; profile management is required |
| Physical SIM | Those unsure about device compatibility | from 2000 JPY | easy to use | Stock and price may vary by vendor; you must swap SIMs into your device |
| Pocket WiFi (rental) | Groups and heavy data users | About 1,000 JPY/day and up | Connect multiple devices easily; simple setup | Requires charging and carrying an extra device; return logistics |
Yes, foreigners can purchase SIM cards in Japan. You can either buy an eSIM in advance or get a physical SIM after arrival. For group travel, sharing a pocket WiFi can be a smart choice.
Absolutely. Japan has excellent public Wi-Fi, but mobile data is essential when traveling in rural areas or on the move. Having access to Google Maps or translation apps can greatly improve your travel experience.
Some U.S. carriers support roaming in Japan, but it’s very important to check the rates in advance. Otherwise, you could end up with a surprisingly large bill when you return home.
As of 2025, the easiest and most convenient way for foreign visitors to stay connected in Japan is to purchase an eSIM before your trip.
This allows you to get online the moment you land, without needing to insert a SIM card or rent a pocket WiFi device.
That said, if you’re using an older phone or have a reliable international plan from your carrier, there are other good options too. Choose the method that fits your needs best and make the most of your time in Japan.
